.editor {
  display: flex;
  flex-direction: column;
}

.editor textarea {
  flex-grow: 1;
  height: 0;
  resize: none;
  border: 0;
  outline: 0;
}

.editor .status_bar {
  height: 22px;
  background: #DDD;
  border-top: 1px solid gray;
  font-family: sans-serif;
  font-size: 12px;
  padding: 4px;
  box-sizing: border-box;
}
.editor .error {
  background: #F77;
}